Albert albebtson



(No Model.)

A. ALBBR'I'SON.

Bottle-Stopper. No. 228,433. Patented June 8,1880.

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U rrED STATES Arnivr 0 tries.

ALBERT ALBERTSON, OF JERSEY CITY, NEW JERSEY, ASSIGNOR TO JOHN MATTHEWS, OF NEW YORK, N. Y.

BOTTLE-STOPPER.

SPECIFICATION forming part of Letters Patent No. 228,4:33,v dated June 8, 1880.

Application filed April 21, 1880.

To all whom it may concern Be it known that I, ALBERT ALBERTSON, of Jersey City, in the county of Hudson and State of New Jersey, have invented a new and Improved Bottle-Stopper, (Case A,) of which the following is a specification.

My invention relates to improvements in that class of bottle-stoppers which are permanently secured within the mouth of the bottle; and it consists of a stopper composed of a rubber or other elastic disk or collar applied to a metal or other rigid stem, the upper end whereof is prox ided with a head or handle, the lower end being formed into two or more springs, whose ends bear against the sides of the bottle-neck in such a way that when the stopper is forced down to open the bottle, by pressing on the handle the springs yield, and slipping into an enlarged portion of the bottle hold the stopper down; but when the stopper is drawn up, by pulling the stem, or by the pressure of the gas inside the bottle against its under side, the springs expand af ter passing the contracted portion of the neck, and in expanding into an upper cavity the springs hold the stopper against the mouth of the bottle.

The invention also consists in other details of inventions, herein after more fully described.

In the accompanying drawings, Figure. 1 represents a vertical central section of my improved stopper and the neck of a bottle, showing the bottle closed. Fig. 2 represents a similar view of the bottle and stopper, showing the position of the stopper when the bottle is open; and Fig. 3 represents atop or plan view of a bottle provided with my improved stopper.

Referring to the drawings, A represents the bottle; B, the neck, the upperportion of which is of the form of the frustums of two cones, a I), put together base to base, so that the smaller part of the lower cone joins the neck at the line e 6, while the upper part ofthe upper cone, 1), forms the month [I of the bottle.

At the junction of the conical part a with the neck is a contracted space, (indicated by the dotted line e e,) above and below which the neck expands-above into the cavity f of any suitable form, the double conical form not being essential, and below into the throat g.

0 represents the stopper, composed of a rub- (No model.)

ber disk or collar, h, placed against the under side of a metal cap or cover, 1', and over a lower metal plate, 1. The said stopper 0 is placed within the cavity f, and the diameter of .55 its rubber portion h is greater than the mouth d. A wire stem, D, is passed through the stopper and secured to the cap 41 and plate 1 The stem in this case is made of two pieces of wire placed side by side, and at the upper end these wires are bent aside at right angles to form a handle, j, the arms of which extend beyond the mouth, so that when the stopper is pressed down the said handle (which may be of suitable form) rests on the rim of the bottle, as in Fig. 2,and thereby prevents the stopper from being forced farther down into the bottle.

Below the stopper the wires composing the stem, or other wires, if desired, are bent outward to form two springs, E E, the ends of which bear against the bottle. The length of these springs is such that their lower ends are a short distance above the line 6 0 when the bottle is closed, as in Fig. 1.

The operation of the stopper is as follows: When the bottle is to be opened the handle j is forced down, whereby the stopper O is also carried down. into the enlargement f, while the springs E E, entering the throat below the line '0 e of greatest contraction, expand slightly against the walls of the throat g and hold the stopper in the cavity f, as shown in Fig. 2. To close the bottle the handle is drawn up so as to carry the ends of the spring-prongs above the contracted part c 6 into the cavity f and the rubber h against the mouth d, as shown in Fig. 1. As in opening the handle j prevents the stopper from being pressed down into the throat of the bottle, there is no 0 liability of the throat being closed and the outflow of the liquid stopped after the stopper is pushed down from the mouth d.

The cap 43 above the rubber stopper prevents impurities from reaching the rubber disk or 5 from settling on the stopper within the mouth of the bottle. To insure this very desirable .result the capiis made hollow underneath,

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sion-handlej, theoutwardly-projecting springs line the springs must pass Whenever thestop- E E, attached to the under side of the stopper, per is moved against or of? its seat, substansubstant-ially as herein shown and described. tially as specified.

2. In an internal bottle-stopper, the c01nbi- This speeifieationof my im'ention signed by 15 5 nation of the rubber disk 71/ with the lower me this 28th dayof February, 1880.

metallic disk, I, and upper hollow cap, 2', substantially as herein shown and described. ALBERT ALBERTSON.

3. Thecombination 0f the bottle-stopper, having handle j above and spreading springs Vitnesses: 10 E below the stoppendisk, with a bottle en- WVILLY G. E. SCHULTZ, larged above and below the line 0 e, which VILLIAM H. 0. SMITH. 

